Road & Trail Running Shoes
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Vincent Viet


By staying present and focusing on the moment, coach and elite athlete Vincent Viet finds passion and success in the sport of ultrarunning.


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Saucony Switchback ISO Boa Womens


From dirt trails and altitude training to paved roads and long flats, the BOA Fit System is engineered to help you perform at your peak with increased connectivity, precision, and control.

Saucony Switchback ISO

L6 Dial F

Get closer
to go further.

The BOA Fit System gives you a better connection to your gear by using instant micro-adjustments to effortlessly dial in the perfect fit for improved stability and stride predictability.

Ready for anything.

Lightweight, waterproof, and ultra-durable, the BOA Fit System is engineered to perform in any condition.  

adidas Terrex Agravic Boa  

adidas Terrex Two Boa black

the boa advantage.

Each micro-adjustable system uses unique dial, lace and guide configurations to deliver unprecedented fit and performance. While each component is crucial in optimizing the fit experience, the foundation of the BOA Fit System is the BOA dial.

L6 is the most widely used dial in the L-SERIES thanks to its versatile cartridge system. Designed to keep you going, the two-part design provides maximum impact protection and easy field repair – when extreme force ejects the dial, you can easily pop the cartridge back in and get back to your run.

How L6 Works


NB 1500 T2 Boa

Making the best gear even better.

Together we're redefining the possibilities of fit.


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